Been stopped by the police

I was stopped by the police on the m6 for a routine taco check. The police man asked me have I got any analog charts I said no as we only use dige. He then asked me if I had any infringements in the last 28 days. I said no, he then downloaded my card. He went back 3 months and he found 2 infringments in August. He asked me have I got my printouts for these infringements I said no as it was over 28days. He said that was not acceptable and gave me 2fixed penatey notices worth £120. I dont think this is right if I was using analog charts he would not have found anything and hence no fines. I am consereing apealing does anyone think it is worth it ? If i do apeal and it is upheld would the court increase the fine?
many thaks steve.

Actually as your employer has to keep 12 months worth, they could have found the infringements, just not at a roadside check.