Ted is checking into a hotel and the song Christian Woman by Type O Negative is playing in the back ground. This song was released in 1993 and right after the hotel the computer store owner was blown up in 1985.
There is a moment in the 3rd act in which a voice-over suggests that the Unabomber might be envious of the media attention given to the Oklahoma City bombing, which happened in 1995. Later, the infamous O.J. Simpson Bronco chase is seen on a TV. The Bronco chase happened in 1994, but is presented as having happened after the OC bombing.
During the library scene 14 minutes in when Ted is sitting at a table, there are two children's fantasy novels, White Crane and Owl Ninja by Sandy Fussell, on the shelf behind him. These were released in 2008, 40 years after his first bombing, so clearly a modern library was used to quickly film in without changing the shelf displays.