Am I overreacting to a creepy text I got?

On Monday I got a text from a random number that said “You’re gorgeous. I love your body” I asked who it was and they said “a secret admirer. I just want you to know you’re beautiful” and I asked why they wouldn’t tell me who it was and they said “maybe soon😉”. In a normal circumstance I would have blocked the number and moved on. But earlier that day, the only place I went was a car dealership and I am worried that someone from there either overheard my name or number or asked the sales rep for my number. I have had that happen before where an employee somewhere looked up my info in their system to text me and ask me out and got really creepy about it. My biggest worry with it is that if they work at the dealership and have access to my information, they have access to everything. Home address, work address, everything I have to the sales rep when looking for a car. I looked up the number in USphonebook and don’t recognize the name or any of the relatives names. I’ve asked around to friends and family to see if maybe they gave my number to someone. I cannot figure out who this person is. It may just be the countless true crime podcasts I’ve listened to, but the whole thing just gives me creepy vibes. One of my friends thinks I am being dramatic and I should just be fine with blocking them, but I’ve heard so many stories of girls blocking guys and the guys retaliating so I still feel weird about it. Am I overreacting? What should I do?