Did anyone else think Mr. Fritz was A? -Pretty Little Liars?

I'm aware of what happens in the books, but I wanted to watch the show. I watched the first four episodes in a few days, and it looks to me like Mr. Fritz was A if I had to take a guess (without my prior knowledge). The note that flew by right when Mr. Fritz rode past on his bicycle. All of the notes they recieved were in school, a place where Mr. Fritz worked. And also the biggest one, Aria makes a comment about a typewriter. And Mr. Fritz calls it a paperweight. Later in the same episode Aria's mom gets a note from A written on a typewriter. Just wondering if anyone else thought the same thing about the typewriter?