South Bay Expressway Toll Road Rip Off - I was never there! San Diego California

I received a DMV Hold Notice from South Bay Expressway stating that I had driven on their toll road without paying. The letter wanted $102.50 ($2.50 for the toll and $100 penalty.)

I have never driven on any toll road. I had to look online to even know where the road 2014-OLR-SB-2 was (South San Diego.) I've never even been on that road!

I checked my schedule/daytimer and found that I was working in my office all day (including the time stamp that they said I was on the toll road.)

The letter gives me the option of submitting a letter of explanation. I'm wondering why I keep getting these erroneous letters. I received one stating that I was driving on a toll road in Colorado as well.

I will mail the letter of explanation, but I was shocked to find online that many others have had this same problem with South Bay. I hope they resolve it.